CVE-2026-94374

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94374", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "state": "PUBLISHED", "assignerShortName": "CIRCL", "dateReserved": "2026-09-21T12:25:00.527Z", "datePublished": "2026-09-21T12:25:02.628Z", "dateUpdated": "2026-09-21T15:21:57.870Z"}, "containers": {"cna": {"affected": [{"modules": ["app/Model/Event.php (processModuleResultsData / handleModuleResults)"], "product": "MISP", "programFiles": ["app/Model/Event.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.47", "status": "affected", "version": "0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Jeroen Pinoy"}, {"lang": "en", "type": "remediation developer", "value": "iglocska"}, {"lang": "en", "type": "remediation developer", "value": "Claude Opus 4.8"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>MISP contains an insecure direct object reference vulnerability in the processModuleResultsData method of the Event model. When processing module results, the code iterates over EventReport entries supplied in the resolved data and saves each one. Unlike the adjacent attribute and object processing loops, the report loop did not unset the client-supplied 'id' field before calling save(). Because the MISP EventReport model's create() method does not strip the id field, an authenticated user with permission to submit module results could include an 'id' value referencing an existing report belonging to a different event. Upon save(), the ORM would update that existing row rather than insert a new one, allowing the attacker to&nbsp;</p>\u2003-&nbsp;read the content of another event's report by reparenting it into their own event<br>\u2003-&nbsp;overwrite the report's fields with attacker-controlled data<br><div>\u2003-&nbsp;change the report's event_id to redirect ownership.&nbsp;</div><div><br></div><p>This constitutes an authorization bypass through a user-controlled key, enabling cross-event data disclosure and integrity compromise. The vulnerability requires an authenticated session with the ability to invoke module result processing on an event.</p><p>Version affected: &lt;2.5.47</p>"}], "value": "MISP contains an insecure direct object reference vulnerability in the processModuleResultsData method of the Event model. When processing module results, the code iterates over EventReport entries supplied in the resolved data and saves each one. Unlike the adjacent attribute and object processing loops, the report loop did not unset the client-supplied 'id' field before calling save(). Because the MISP EventReport model's create() method does not strip the id field, an authenticated user with permission to submit module results could include an 'id' value referencing an existing report belonging to a different event. Upon save(), the ORM would update that existing row rather than insert a new one, allowing the attacker to\u00a0\n\n\u2003-\u00a0read the content of another event's report by reparenting it into their own event\n\u2003-\u00a0overwrite the report's fields with attacker-controlled data\n\u2003-\u00a0change the report's event_id to redirect ownership.\u00a0\n\n\n\n\nThis constitutes an authorization bypass through a user-controlled key, enabling cross-event data disclosure and integrity compromise. The vulnerability requires an authenticated session with the ability to invoke module result processing on an event.\n\nVersion affected: <2.5.47"}], "impacts": [{"capecId": "CAPEC-126", "descriptions": [{"lang": "en", "value": "CAPEC-126 Parameter Tampering"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.3, "baseSeverity": "HIGH", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:H/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-639", "description": "CWE-639 Authorization Bypass Through User-Controlled Key", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-472", "description": "CWE-472 External Control of Assumed-Immutable Web Parameter", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-21T12:25:02.628Z"}, "references": [{"name": "Security patch", "tags": ["patch"], "url": "https://github.com/MISP/MISP/commit/4c1a03b20"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The fix adds an unset($report['id']) call in the EventReport processing loop within processModuleResultsData, immediately before the event_id assignment and save() call. This ensures that any client-supplied id field is stripped from the report data, forcing the ORM to perform an insert (new report) rather than an update (existing report), consistent with the existing behavior of the attribute and object loops in the same method.</p>"}], "value": "The fix adds an unset($report['id']) call in the EventReport processing loop within processModuleResultsData, immediately before the event_id assignment and save() call. This ensures that any client-supplied id field is stripped from the report data, forcing the ORM to perform an insert (new report) rather than an update (existing report), consistent with the existing behavior of the attribute and object loops in the same method."}], "title": "MISP: IDOR via Client-Supplied Report ID in Module Results Processing Allows Reparenting and Overwriting of Other Events' Reports", "x_gcve": [{"extensions": {"bcp-05-x-01": {"ai_annotations": [{"ai_level": "generated", "description": "Draft vulnerability metadata was generated from a git-format patch using an Ollama-hosted language model. 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AT:N \u2013 no prior user interaction or attack preparation beyond crafting the payload. PR:L \u2013 requires an authenticated user with permission to submit module results on an event (a common MISP role). UI:N \u2013 no victim interaction required. VC:L \u2013 the attacker can read the content of one specific report they target by id. VI:H \u2013 the attacker can overwrite all fields of the targeted report and change its event_id, fully compromising its integrity. VA:N \u2013 no availability impact. SC/SI/SA \u2013 no impact on adjacent systems; SI:H reflects the integrity compromise of the shared report data store.", "fixSummary": "The fix adds an unset($report['id']) call in the EventReport processing loop within processModuleResultsData, immediately before the event_id assignment and save() call. 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This ensures that any client-supplied id field is stripped from the report data, forcing the ORM to perform an insert (new report) rather than an update (existing report), consistent with the existing behavior of the attribute and object loops in the same method.", "supportingMedia": [{"type": "text/html", "value": "<p>The fix adds an unset($report['id']) call in the EventReport processing loop within processModuleResultsData, immediately before the event_id assignment and save() call. This ensures that any client-supplied id field is stripped from the report data, forcing the ORM to perform an insert (new report) rather than an update (existing report), consistent with the existing behavior of the attribute and object loops in the same method.</p>", "base64": false}]}], "references": [{"url": "https://github.com/MISP/MISP/commit/4c1a03b20", "name": "Security patch", "tags": ["patch"]}], "descriptions": [{"lang": "en", "value": "MISP contains an insecure direct object reference vulnerability in the processModuleResultsData method of the Event model. When processing module results, the code iterates over EventReport entries supplied in the resolved data and saves each one. Unlike the adjacent attribute and object processing loops, the report loop did not unset the client-supplied 'id' field before calling save(). Because the MISP EventReport model's create() method does not strip the id field, an authenticated user with permission to submit module results could include an 'id' value referencing an existing report belonging to a different event. Upon save(), the ORM would update that existing row rather than insert a new one, allowing the attacker to\u00a0\n\n\u2003-\u00a0read the content of another event's report by reparenting it into their own event\n\u2003-\u00a0overwrite the report's fields with attacker-controlled data\n\u2003-\u00a0change the report's event_id to redirect ownership.\u00a0\n\n\n\n\nThis constitutes an authorization bypass through a user-controlled key, enabling cross-event data disclosure and integrity compromise. The vulnerability requires an authenticated session with the ability to invoke module result processing on an event.\n\nVersion affected: <2.5.47", "supportingMedia": [{"type": "text/html", "value": "<p>MISP contains an insecure direct object reference vulnerability in the processModuleResultsData method of the Event model. When processing module results, the code iterates over EventReport entries supplied in the resolved data and saves each one. Unlike the adjacent attribute and object processing loops, the report loop did not unset the client-supplied 'id' field before calling save(). Because the MISP EventReport model's create() method does not strip the id field, an authenticated user with permission to submit module results could include an 'id' value referencing an existing report belonging to a different event. Upon save(), the ORM would update that existing row rather than insert a new one, allowing the attacker to&nbsp;</p>\u2003-&nbsp;read the content of another event's report by reparenting it into their own event<br>\u2003-&nbsp;overwrite the report's fields with attacker-controlled data<br><div>\u2003-&nbsp;change the report's event_id to redirect ownership.&nbsp;</div><div><br></div><p>This constitutes an authorization bypass through a user-controlled key, enabling cross-event data disclosure and integrity compromise. The vulnerability requires an authenticated session with the ability to invoke module result processing on an event.</p><p>Version affected: &lt;2.5.47</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-639", "description": "CWE-639 Authorization Bypass Through User-Controlled Key"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-472", "description": "CWE-472 External Control of Assumed-Immutable Web Parameter"}]}], "providerMetadata": {"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "shortName": "CIRCL", "dateUpdated": "2026-09-21T12:25:02.628Z"}}}, "cveMetadata": {"cveId": "CVE-2026-94374", "state": "PUBLISHED", "dateUpdated": "2026-09-21T15:21:57.870Z", "dateReserved": "2026-09-21T12:25:00.527Z", "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "datePublished": "2026-09-21T12:25:02.628Z", "assignerShortName": "CIRCL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"modules": ["app/Model/Event.php (processModuleResultsData / handleModuleResults)"], "product": "MISP", "programFiles": ["app/Model/Event.php"], "repo": "https://github.com/MISP/MISP", "vendor": "MISP", "versions": [{"lessThan": "2.5.47", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "MISP contains an insecure direct object reference vulnerability in the processModuleResultsData method of the Event model. When processing module results, the code iterates over EventReport entries supplied in the resolved data and saves each one. Unlike the adjacent attribute and object processing loops, the report loop did not unset the client-supplied 'id' field before calling save(). Because the MISP EventReport model's create() method does not strip the id field, an authenticated user with permission to submit module results could include an 'id' value referencing an existing report belonging to a different event. Upon save(), the ORM would update that existing row rather than insert a new one, allowing the attacker to\u00a0\n\n\u2003-\u00a0read the content of another event's report by reparenting it into their own event\n\u2003-\u00a0overwrite the report's fields with attacker-controlled data\n\u2003-\u00a0change the report's event_id to redirect ownership.\u00a0\n\n\n\n\nThis constitutes an authorization bypass through a user-controlled key, enabling cross-event data disclosure and integrity compromise. The vulnerability requires an authenticated session with the ability to invoke module result processing on an event.\n\nVersion affected: <2.5.47"}], "id": "CVE-2026-94374", "lastModified": "2026-09-21T16:17:30.193", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-94374", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-21T15:21:38.785106Z", "version": "2.0.3"}}]}, "published": "2026-09-21T13:17:12.953", "references": [{"source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "url": "https://github.com/MISP/MISP/commit/4c1a03b20"}], "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-472"}, {"lang": "en", "value": "CWE-639"}], "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.47)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "MISP", "source": "cna", "vendor": "MISP"}, "product": "misp", "vendor": "misp"}], "created": "2026-09-21T13:30:16.557063+00:00", "updated": "2026-09-21T13:30:16.802095+00:00", "vendors": ["misp", "misp$PRODUCT$misp"]}